package com.zzyl.nursing.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

/**
 * @author: weiyongchao
 * @date: 2025/6/18 - 11:14
 * @mail: 1915000810@qq.com
 * @info:
 */
@Mapper
public interface UserMapper {

    @Select("select user_name from sys_user where user_id = #{userId}")
    public  String SelectUserNameById(Long userId);
}
